Angels Camp, CA…A 60 year old Sonora was riding his Yamaha northbound on State Route 49, just north of Whittle Rd., traveling approximately 50 mph. He observed a vehicle stopped in the northbound lane ahead of his location. He applied the brakes and attempted to stop. The Yamaha’s rear wheel skidded, overturned and he was ejected from the motorcycle. He sustained moderate injuries and was transported by ambulance to Sonora Regional Hospital for treatment.